Author Topic: Roll Out Solar Array (ROSA) headed to the ISS  (Read 18963 times)

Offline jcm

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #40 on: 06/13/2017 11:16 PM »
Do we know what the mass and power output of this prototype are? Also, I find it really cool that it's possible to fit a huge panel of this kind into the Dragon's trunk.

The NASA CRS-11 launch summary says ROSA mass (for the complete cargo element, but I guess not including the
trunk attach frame) is 325 kg.  Don't know about power.
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Online nacnud

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #41 on: 06/13/2017 11:22 PM »
The power is just a few cells, this is a test of the mechanical systems. Most of the cells are dummies to save money.

Offline mtlapointe

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #42 on: 06/16/2017 04:27 PM »
This seems like a pretty early technology test, given the short stay on station. Assuming all goes well, what is the next step?

We have been developing this technology for several years now and have fully qualified several systems back here on Earth. Next step to increase the TRL would be a Flight Demonstration, which is what we are checking off the list with this mission. If all goes well, next step would be to implement ROSA as power source for actual commercial and government satellites/spacecraft.

Offline centaurinasa

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #43 on: 06/18/2017 08:25 AM »

Online IRobot

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #44 on: 06/18/2017 09:35 AM »
Hi mtlapointe,

How many W/kg do you expect for a full working system? How does that scale up?

Thanks!

PS: by the way, your webpage needs to be brought to the XXI century...
« Last Edit: 06/18/2017 09:38 AM by IRobot »

Offline Scylla

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #45 on: 06/18/2017 01:11 PM »
ISS Roll Out Solar Array Deployment (Real Speed)

I reject your reality and substitute my own--Doctor Who

Offline centaurinasa

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #46 on: 06/18/2017 06:23 PM »
« Last Edit: 06/18/2017 06:47 PM by centaurinasa »

Online Prettz

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #47 on: 06/19/2017 04:18 AM »
This seems like a pretty early technology test, given the short stay on station. Assuming all goes well, what is the next step?

We have been developing this technology for several years now and have fully qualified several systems back here on Earth. Next step to increase the TRL would be a Flight Demonstration, which is what we are checking off the list with this mission. If all goes well, next step would be to implement ROSA as power source for actual commercial and government satellites/spacecraft.
Sorry, I meant early as in in-space testing. But it sounds like I was wrong about that. If this is the final test before real use as a power source, that's awesome.

Offline centaurinasa

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #48 on: 06/20/2017 04:44 PM »

Offline centaurinasa

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #49 on: 06/25/2017 01:14 AM »
That the End.... of the first deployment
« Last Edit: 06/25/2017 09:44 AM by centaurinasa »

Offline Star One

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #50 on: 06/25/2017 08:25 AM »
That was very brief. Is it removed now & disposed of?

Offline Skyrocket

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #51 on: 06/25/2017 09:18 AM »
That was very brief. Is it removed now & disposed of?

Yes - it will be stowed back in the Dragon's trunk and will be deorbited.

Offline centaurinasa

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #52 on: 06/25/2017 09:31 AM »
Second deployment (after the seven day test)
« Last Edit: 06/26/2017 11:01 PM by centaurinasa »

Offline centaurinasa

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #53 on: 06/25/2017 09:34 AM »
Right now (after 2nd retraction) a third deployment !

http://www.ustream.tv/channel/live-iss-stream
« Last Edit: 06/25/2017 09:45 AM by centaurinasa »

Offline centaurinasa

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #54 on: 06/25/2017 09:40 AM »
Fully extended again...
« Last Edit: 06/25/2017 10:12 AM by centaurinasa »

Offline centaurinasa

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #55 on: 06/26/2017 06:49 PM »
From a more wide angle...

Offline SWGlassPit

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #56 on: 06/26/2017 10:12 PM »
Jettisoned as of about an hour ago.  They were unable to retract fully for stowage in the trunk.

Offline centaurinasa

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #57 on: 06/26/2017 10:32 PM »
Jettisoned as of about an hour ago.  They were unable to retract fully for stowage in the trunk.
"ROSA has been jettisoned by Dextre being commanded @csa_asc The roll up did not lock so plan was to jettison! Neat!"

https://twitter.com/Kam_Bahrami/status/879465833503870977
« Last Edit: 06/26/2017 10:41 PM by centaurinasa »

Offline centaurinasa

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #58 on: 06/26/2017 10:42 PM »
« Last Edit: 06/26/2017 10:51 PM by centaurinasa »

Offline russianhalo117

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Re: Roll Out Solar Array (ROSA) headed to the ISS
« Reply #59 on: 06/26/2017 11:21 PM »
Jettisoned as of about an hour ago.  They were unable to retract fully for stowage in the trunk.
"ROSA has been jettisoned by Dextre being commanded @csa_asc The roll up did not lock so plan was to jettison! Neat!"

https://twitter.com/Kam_Bahrami/status/879465833503870977
It uses an ESPA interface to the FRAM with a springloaded Mk II Lightband (or similar) PAF securing the 2 together.
« Last Edit: 06/26/2017 11:22 PM by russianhalo117 »

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